If Drew ever hands you one of his business cards, drop everything and find yourself a record player, because when spun and viewed through a smartphone’s camera app, his card appears to come to life. How does it work? It’s a simplified version of an 1800s motion picture machine called a Phenakistoscope. You don’t need antique hardware to recreate the animation effect, however, just lots of light, something that spins, and the phone that’s already in your pocket. And perhaps some, uh, fun treats.